I feel like shit and mad at myself since yesterday, I even dreamed it. But I won't tell you what because it's shameful.
here.) I based that off a wing logo I found, but it's stuck in that exact form and shape since I first--ahem--'designed' it, back when her character was first conceived of. At the time I just thought it looked cool and denoted her defining talent; grace/agility.
She developed some other characteristics and backstory (independently of her cutie mark) as I continued to refine her character, but the cutie mark remains completely untouched. There's aspect of it that I realized in retrospect--with no small shock--that is a huge, huge, huge part of her character now, and that's the little beak at the end of the wing. Which has been there from the start.
Just an example of unintentional meaning, but yeah.